Features: Engineered with a unique spirals design, this high hardness alloy steel router bit minimizes cutting resistance for high efficiency woodworking, ideal for lock holes, mortises, and precisions wood routing tasks. Available in multiple diameter option, the edged cutter ensures smooth on wood, composites, and plastic while maintaining long lasting durability. Perfect for professional woodworkers, cabinet makers, and DIYer enthusiasts seeking good performances in detailed joinery or large scale workshop projects. Tackle intricate furniture crafting, door lock installations, or decorative wood carving effortlessly across workshops, construction sites, and home improvement setups. Its heat resistant alloy construction coupled with spirals flute geometry ensures reduced vibrations and enhanced precisions, making it a must have tool for clean bottom grooving and edges profilings. Specifications: Component: Alloy Diameter:17mm,18mm,20mm,22mm, Length:140mm/5.51'',160mm/6.3'' Package Includes: 1Set Router Bit note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.